mod: merge tabbar from pilipala

lib/utils/extension.dart

@@ -5,3 +5,13 @@ extension ImageExtension on num {
     return (this * MediaQuery.of(context).devicePixelRatio).round();
   }
 }
+
+extension ScrollControllerExt on ScrollController {
+  void animToTop() {
+    animateTo(
+      0,
+      duration: const Duration(milliseconds: 500),
+      curve: Curves.ease,
+    );
+  }
+}